In addition to Guide Lines and Snap Guides, the relative construction methods also constrain the element construction direction to a constant angle or offset. They are accessible from the Drafting Aids toolbar:
They can also be accessed from the third button of the Control Box.
Note: The Control Box is not visible by default. It is available at Window > Palettes.
See Control Box for more information.
Each Relative Construction Method is described in the following sections:
Parallel and Perpendicular Constraints
Offset and Multiple Offset Constraints (Relative Construction Methods)
Aligning Elements to a Surface in 3D
Snap Points on Temporary Vector
Relevant topics
Offset and Multiple Offset Constraints (Relative Construction Methods)
The Offset Constraint and Multiple Offset Constraint methods help you create elements offset from a reference line, using any tool that ...
Skylight Constraint Relative to Roof
This feature is applicable to Skylights in Roofs only (not to Skylights in Shells).
If you change the geometry of a Roof that contains Skylight, ...
Link Construction Elements to Stories
Each Construction Element and 3D Object in ArchiCAD is linked to a specific Story, called its Home Story. The elevation of the Element is determined by the elevation of its Home Story If its Home Story is deleted, the element will be deleted with it…